Description:
ORA-12315 database link type is invalid for the ALTER DATABASE statement
Cause:
The database link name you specified on the ALTER DATABASE statement is not an ROM: link. You must specify an ROM: link when using the ALTER DATABASE statement to mount or open a secondary database.
Description:
ORA-12316 syntax error in database link’s connect string
Cause:
The connect string in the CREATE DATABASE LINK statement has a syntactical error.
Description:
ORA-12317 logon to database (link name string) denied
Cause:
There are several possible causes for this error. First, you can get this error if your username (and password, if you are using database instead of operating system authentication) in the secondary database are not identical to your username (and password) in the primary database. Second, you can get this error if your username in the secondary database is invalid (has not been created). Third, you can get this error if the username/password combination specified in the connect string of the database link definition is invalid (either not created or has an invalid password).
Description:
ORA-12318 database (link name string) is already mounted
Cause:
You are attempting to mount a secondary database that has already been mounted by your instance.
Description:
ORA-12319 database (link name string) is already open
Cause:
You are attempting to open a secondary database that is already open.
Description:
ORA-12321 database (link name string) is not open and AUTO_MOUNTING=FALSE
Cause:
The secondary database that your instance is attempting to mount is not open and automatic mounting has not been enabled.
Description:
ORA-12322 unable to mount database (link name string)
Cause:
This message should be accompanied by additional error messages that indicate the cause of the problem.
Description:
ORA-12323 unable to open database (link name string)
Cause:
This message should be accompanied by additional error messages that indicate the cause of the problem.
Description:
ORA-12324 cannot use the ROM: link type on a private database link
Cause:
You can only specify the ROM: link type on a public, not a private, database link.
Description:
ORA-12326 database string is closing immediately; no operations are permitted
Cause:
The database you attempted to access is closing, so your operation has been terminated.